//strategy.h
#ifndef _STRATEGY_H_ 
#define _STRATEGY_H_

class Strategy 
{ 
public: 
	Strategy();
	virtual ~Strategy();
	virtual void AlgrithmInterface() = 0;
protected:
private:
};

class ConcreteStrategyA:public Strategy 
{ 
public: 
	ConcreteStrategyA();
	virtual ~ConcreteStrategyA();
	void AlgrithmInterface();
protected:
private:
};

class ConcreteStrategyB:public Strategy 
{ 
public: 
	ConcreteStrategyB();
	virtual ~ConcreteStrategyB();
	void AlgrithmInterface();
protected:
private:
}; 

#endif //~_STRATEGY_H_
